Countersinking or facing machine.



PATENTED MAR.y 13, 1906.

. o. M. MowAT. GGUNTERSINKING 0R FAGING MACHINE.

APPLIUATIOH FILED FEB. 11. 1905. 4

` 4 SHEETS-SHEET 1.

. neven-rop A M. Mani' wl'rrdsssls f PATBNTED MAR. 1s, 1906. o. M. MOWAT. GOUNTERSINKING 0R PAGING MACHINE.

APPLIOATION FILED FEB, 11. 1905.

4 SHEETS-SHEET 2.

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y {uvam-on PATBNTED MAR. 13, 1906. '0. M. MOWAT. y COUNTERSINKING o R FAGING MACHINE.

APPLICATION FILED TEIL-11. 1905.

4 SHEETS-SHEET 3.

lum-l mvEN'roR l WITNESSES PATBTBD MAR. 1a, 1906.`

o. M.-MOWAT.

GOUNTBRSINKING 0R FAGING MACHINE.-

APPLIOATION FILED IBB. 11. 1905.

A 4 sunnita-SHEET 4.

INVENTOR l 601m.' uw

WITNESSES sTATEs PATENT oPEIoE.

ioLIvEE'fM.f MoWAT,oE MCKEEsPoET, PENNSYLVANIA. AssIGNoE-Tof* jgNATloNALgTUE; ICOMPANY, OE PITTSBURG, PENNsYLvANiA, -A

e l CoEPoRATIoNJgoE NEW JERSEY.

, e :.foNE-RSINKING on FACING MAQHINE.4 V

f' To' azz 'wam it mayetn'em:

v Beit 'known that *1, OLivER M. MoWAT, of

MeK'eesport, Allefhenyf` county, Pennsylvania, haveinvente 'aj new' 'and useful Counter- 5f: sinkingI ionFacing: Machine, rof which the following isa full,l clearjanfd exact description, reference .,b'ei'ng" had gto the .accom anying desde s;

y y b forethre'ading pipe-coupu ersinkltheir ends in orflory hashes which result ,Welding operations to ed II in t e course yof Veftaps or interfere 'My invention {prosuch'v couplings can the dra' gs the cou ling to be countersunk lor faced is placed in t e' machine in a suitable t specification of Letters Patent. Application mearebruary 11.1905. serial-No. 245,265.

lthis speci cation,v

tools are common inthe art'their construeprey@ fora the mandrelswof @jo-aat *r'ptirorfrthe purposetfsubstiw drelsyof other sizes. Ihe re'e'procatlo il "if 2 Ji as Shown op of the machine shown l Patented. March 13,1906.'l

carrier, which lcarries'it to the iirst Working position, in which a mandrelis inserted in it; 55 and it is brought into contact with va countersinkinv-tool, which revolves in contact vwith its end and countersinks or faces it. The coupling then carried"automaticallyv tothe second Working position, in'which it is en# tered again by av mandrel, and its yother end is brought into contact with a second connetersinklng-tool.' The neXt'motion-of the machine discharges the coupling which has thus f been countersunk or Vfaced at both ends. The 6 5 operations above described'takeplac'e succes# slvely, so that in the ordinary Working'of the machine there are two colur'lin'gsl Whichare being countersunk at respectivelyopposite ends, and each couplinf ybefore itjleaves the 7o machine and without t e'necessityof inter? vening handlingV by the operator iscounter# sunk orfaced at both'ends. f n

The preferable construction of the machine 'I 1 is shown inthe drawings andis' las follows: 2 75 represents the frameV offthe machine proi vided with parallelv shafts 3' v3',y carrying pp-v` positely-facmg countersinking or facing vtools 4 4J, which arescrewed 'on threaded.portions 5 at the ends of the shafts 'or are otherwise jse- 8o cured thereto. The countersinking-.tools are adapted to face orc'ountersink the couplings and to remove the fins' therefrom',and as such y tion does not form part of myinvention and 85 may be changed as desired.` .The shafts 3 -3 are preferably driven continuously by beltpulleys 3a or otherwise. Opposite ,to .the countersinking-tools are li'n'andrels 6', lixed, resplectively, to the ends vof slides7 ,provided 9o wit' racks and segmental` pinion's v8,7181 'or othe'rme'ans by which they ymaybere "'pr' colurfiterfsinkin -toolslA fThese `man or' ma lbe of t v e constructlon ordil Mounted between the countersmkmgand mandrels 1s a carrierv 10, Whlch is preferlcg ably rotary, its axis 11 being so placed relatively to the countersinking-tools that the l carryinvsockets 10 at its periphery will bring the couplin s laced therein successively into line wit t e two sets of opposing countersinking tools and mandrels. The carrier 10 is rotated by gearing 12, deriving its rotary motion from a pinion 12 on a shaft which also carries a four-step ratchetstop 13, adapted to be stopped at the successive positions by a pawl 14, held in engagement with the ratchet by a spring 15. On the shaft of the pinion 12 is a friction-clutch 16, which is preferably belt-driven. The driving portion 16 of this clutch is held by springs 17 1n frictional contact with the driven portion 16a, which is keyed to the shaft of the pinion -12, so that as soon as the ratchet 13 is released by the pawl 14 this frictional contact will be sufficient to drive the pinion 12 and to move the carrier 1() to its next position, at which it is stopped by the pawl 14, andwvlien it is thus stopped the part 16 will slip idly in contact with the other portion 16a of the clutch. The pawl 14 is connected by a bellcrank lever 18 to a rock-arm 19, carrying a pivoted trigger 20, which is adapted to vengage with a dog 21 on the shaft 9 of the lever 9 when the lever 9 is brought into such position as to retract the slides 7 7 and mandrels 6. At -this time the engagement of the .dog 21 with the trigger 2() momentarily rocks the arm 19, so as to retract the pawl 14 from the ratchet 13, and thus to release the ratchet and to permit the gearing 12 to rotate. This retraction of the pawl is only momentary,for thefurther motion of the lever 9 disengages the dog 21 from the trigger 20, thus permitting the spring to force l1 engagement with the ratchet and causing it to stop the same when it has completed its next quarter-revolution.

The o eration of the machineis as follows: The sha ts 3 3 havin been started in rotation, sogas to rotate t e respective countersinking-tools 4 4, and the lever 9 having been moved into the position shown in Figs. 1, 2, and 4, so Vas to retract the slides 7 7 and mandrels 6 6 to their farthest extent, and a coupling being in each of the upper sockets 10, the o erator moves the lever in the direction of t e arrow c, Fig. 2, so as to advance the mandrels toward the center of the machine. These mandrels passing into the sockets 10 of the carrier enter the couplings which are laced therein, and then move tllie couplings 'orward into contact with the rotating countersmking-tools 4 4, the mandrels and tools being preferably centered by means of pins 22, which project centrally from the countersinking-tools and enter corresponding central holes in the mandrel. The parts are held in this position sulliciently long for each countersinkmg-tool to face the end of the coupling'on which it is acting, and then the .operator retracts theulever 9 into the position e pawl 14 again intoshown in Figs. 1, 2, and 4. This draws back :the mandriils 6 6, retracts the .couplings from contact with countersinking-tools, and leaves them in the sockets of the carrier, the mandrels being stripped from the couplings by strippers 23, having V-shaped ends in line with the mandrels and of sufficient diameter to permit the mandrels to be drawn through them, but to hold the cou liners from being retracted by the mandrels ibacl of the sockets of the carrier. As the lever approaches the end of its movement it momentarily retracts the pawl 14, thus releasing the ratchet 13, whereupon by means of the frictionclutch 16 the gearing 12 12 is rotated and the carrier 1() is advanced another step, which in the construction shown in the drawings equals a quarter-revolution of the carrier. This motion brings the coupling which has been acted upon by the tool 4 into line with the second tool 4', which is directed toward the o posite or unfaced end of the coupling, and rings a new coupling which has been placed by the operator in the carrier into line with the tool 4, so that the next motion of the lever 9 will bring the unfaced end of the first-named cou )ling into contact with the tool 4 and will brmg one end of the new coupling into contact with the tool 4. The machine therefore successively faces the ends of each coupling without intermediate handling by theo erator. Each operation of the machine finis es one coupling, faces one end of another coupling, and as the carrier is moved to bring the parts into a new position the finished coupling is discharged by drop ping from the socket.

It will be observed that in the machine described the tools and carrier are in fixed longitudinal or endwise relation to each other and that the articles o erated upon are moved in the carrier towar and away from the tools by means of the longitudinal mandrels. This arrangement not only avoids a longitudinal movement of the tool-operating shafts and tools while rotating, which complicates the bearings and driving-gear for the shafts, but it enables the tools to be constantly rotated in one direction, which very greatly increases the capacity of the machine.

The couplings may be held by gripping on their outer surface instead of as shown, and the parts `may be modified in many ways within the scope of my invention, since What I claim is- 1. A countersinking or facing machine having a plurality of tools, a carrier by means of which the articles to be operate upon arebrought successively to the tools, sald tools and carrier having a fixed relation to each other, and means by which the articles are engaged and moved endwise in the carrier toward and away from the tools.

2. In a machine of the character described, a plurality of tools, a carrier for bringing the IOO kof an intermediate rotary carrier,

articles to be operated upon successivel to the tools, said tools and carrier having a ed relation to each other, mandrels arranged to engage and move the articles in the carrier Ytoward and away from the tools, `and means for engaging said mandrels With'the articles.

In a macnine of the character described,

oppositely-directed tools, a carrier intermediate of the tools for carrying the articlesto be operated upon thereto, said carrier and `tools having a fixed relation to each other,

and devices for engagmg and moving the work in the carrierendwise toward and away from the tools. y

4. In a machine ofthe character described, oppositely-directed tools, acarrier interme-` dlate the tools for bringing the articles' yto be operated u on successively thereto, reciprocable man rels for moving the articles in the carrier toward and away fromthe tools, and means for reciprocating the mandrels simultaneously to move the artlcles on the carrier to- 'ward and awa from the tools.

5. In amac ineoi" the character described, oppositely-directed tools, a carrier intermedlate of the tools for carrying the articlesV to be operated upon successlvely thereto, mandrels for engaging and moving the articles endwise on the carrier toward and away from :the tools, and means for retracting the mandrels and thereupon advancing the carrier.

6. In a machine of the class described, the combination with oppositelydirected tools, arranged to bring the articles to be operated upon successively to the said tools, and means for engaging and moving the articles endwise on said carrier toward and away from the tools.

i 7. -In a'machine ofthe charact'erdescribed,A oppositely-directed tools, a rotary carrier intermediate of the tools and having sockets adapted to carry the articles to be operated upon successively into linewith the ltools, said tools and carrier `being in fixed endwise or longitudinal relation to each other and into contact with the tools and away from the same.

8. In a machine of the class described, oppositel arranged tools, a rotary carrier interme iate of the tools and having sockets arranged to carry thearticles to be operated upon successively into line with the tools, re-

ciprocable mandrels for moving the articlesl in said sockets endwise toward and away from the tools,

and means for eilecting an opposite simultaneous reciprocation ol' the sald mandrels.

9. Inamachine of the class described, oppositey-directed tools, a rotary carrier interme iate of the tools for bringing the articles to be operated upon successively in line therewith, oppositely-reciprocating mandrels for moving the articles in the carrier-toward l `opposite each tool, adjacent to directed tools,

tlons.

scribed, the combination with a and away from the tools, and means for retracting the mandrels and A thereupon advancing the carrier.

10. In a machine of the` character described, a plurality of tools, acarrier for bringingthe'articles to be operated u on successively into line with the said too s, strippers the carrier, mandrels alined with each tool and projecting past the corresponding strippers for enga ing the articles in the carrier and moving t em toward and from the tools, and means for operating the mandrels.

11. In a machine of the ycharacter described, two` oppositely-directed tools out ofv line with each other, a carrier intermediate the tools, for bringing the articles te be operated upon successively into linetherewith, mandrels alined with the tools for engaging the `articles on" the carrier to move-them toward and away from the tools, and o erating means for the tools, carrier and mandiels.

12. In a machine of the character described, the combination of the oppositelythe intermediate rotar car- Iier, vsaid tools and carrier being iixe with res ect to movement toward and away from eac. other, the manually-operated reclprocable mandrels, and means for simultaneously operating said mandrels in opposite direc- 13. In a machine oi" the character described, 4the combination with the'oppositelydirected tools, the intermediate rotary carrier, and the oppositely-reciprocating mandrels, of gearing or actuating the said carrier,

sa1d gearing including a friction-clutch and means for actuating the said mandrels arranged to control the operation of said clutch.

14. In a machine of the character deplurality of l'OO tools, a rotary carrier, and reciprocating mandrels varranged to coperate with the carrier in bringing. the work to the tools, of gearing for o eratmg said carrier including a frictionclutch, a stop for the said gearing, and means for actuating the said mandrels .arran ed `to control the action ofsaid stop and clutc z IIO 15. In a machine of the` character de.-

scribed, the combination with the rotary work-carrier and the reciprocating mandrels which co crate. with the said carrier, of an operatingever for said mandrels, actuating carrier, and means controlled by said lever for controlling the operation ofthe said gear- In testimony whereof I have hereunto set my hand. OLIVER M. MOWAT. `Witnesses:

RICHARD D. JAMES, l 1 f A.A.C0REYY.

connections between the lever ,and mandrels, intermittently-acting gearing for rotating the 

